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Radiant|Natural|GIA

0.51ct H SI2 Radiant Natural Diamond

GD • H/SI2 • GIA 2221712123

Certificate GIA 2221712123

Diamond specifications and retailer prices

From €352 EUR
$393 USD
As of October 31, 2026
Save €252 EUR (42%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €604 EUR at DreamStone · As of October 31, 2026
View at DreamStone

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2221712123. Listed at 3 retailers as of October 31, 2026, with prices from €352 to €604, a €252 spread on the same certified stone. DreamStone lists it at €604. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
H
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2221712123
Dimensions4.25 × 3.93 × 3.37 mm
L/W Ratio1.08
Girdle conditionPolished
Top View
4.25 mm3.93 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceMedium
CertificateGIA 2221712123
Side View
Table 75.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 85.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €604 EUR|Low: €320 EUR|High: €775 EUR|Avg: €562 EUR
DreamStone
Retailer 2
Retailer 3
Retailer 4
October 5, 2026
Retailer 2€352 EUR
Retailer 3€533 EUR
DreamStone€604 EUR
Retailer 4€775 EUR

2 data points across 4 retailers

3 retailers€352 EUR to €604 EUR

B+
Cheapest Retailer
-
€352 EUR
$393 USD
Final sale: no returns
B+
Retailer 2
-
€533 EUR
$595 USD
View
Most Expensive
B
DreamStone
CC2737 · Oct 31
€604 EUR
$675 USD
View
2 more retailers have this diamond
Prices start from €352 EURSave up to €252 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
0.51ct Radiant
€352 EUR